| Origin Heating & Air INC | Mason Ashton Masters | — | (661) 609 5399 | HVAC | Tehachapi · Kern County | — | — |
| Original Demolition Services INC | Domingo Jr Pena | — | (661) 619 9626 | Other | Bakersfield · Kern County | — | — |
| Oriole Homes INC | Stephen William Hair | — | (661) 327 0912 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Orkin | Orkin | — | (661) 779-7008 | Pest, tile roofs | Bakersfield · Kern County | — | — |
| Oro Vista Construction INC | Kevin Daniel Fuentes | — | (661) 340 4109 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Ortega Builders INC | Ortega Esteban | — | (661) 201 0747 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Ortega R's Construction | Agustin Ramirez Ortega | — | (661) 706 5066 | Electricians | Bakersfield · Kern County | — | — |
| Ortiz Painting | Ortiz Painting | — | (661) 636 7324 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Osburn Painting | Osburn Painting | osburnpainting@outlook.com | (661) 978 4381 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Oscar Garcia | Oscar Garcia | — | (661) 319 1416 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Oscar Lopez Construction | Lopez Bautista Oscar | — | (661) 201 7793 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Oscar's Concrete | Oscar's Concrete | — | (661) 823 0415 | Other | Tehachapi · Kern County | — | — |
| Oscars Cabinets | Oscars Cabinets | — | (661) 384 1418 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Otg Concrete | Otg Concrete | otgconcrete@yahoo.com | (661) 390 3609 | Other | Bakersfield · Kern County | — | — |
| Otterness Finish Carpentry | Otterness Finish Carpentry | — | (661) 201 1896 | Other | Bakersfield · Kern County | — | — |
| Owens Construction & Engineering INC | Michael Lynn Jr Owens | — | (661) 588 5936 | Other | Bakersfield · Kern County | — | — |
| Owens/maurer Construction INC | Jason James Maurer | — | (661) 695 9003 | Electricians | Bakersfield · Kern County | — | — |
| Owl Romeros Construction | Roberto Alexander Romero | — | (661) 319 3315 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Ozenne Painting | Ozenne Painting | — | (661) 303 2380 | Windows, patio, painters | Tehachapi · Kern County | — | — |
| P & J Electric INC | Peter Emanuel Glasner | — | (661) 822 6217 | Electricians | Tehachapi · Kern County | — | — |
| P D Welding | P D Welding | — | (661) 809 7445 | Other | Wasco · Kern County | — | — |
| P I C Development INC | Rodolfo Jr Sanchez | — | (661) 203 2899 | Other | Bakersfield · Kern County | — | — |
| P I E Con | P I E Con | — | (661) 589 1543 | Other | Bakersfield · Kern County | — | — |
| P I E Con INC | Scooter Harold Lusk | — | (661) 589 1543 | Other | Bakersfield · Kern County | — | — |
| P R Contractor Services | Ramon Conrado Moreno | — | (661) 204 8899 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| P Taylor Backhoe Service INC | David Murph Taylor | — | (661) 340 7594 | Other | Bakersfield · Kern County | — | — |
| P V Construction | Peter Francis Vigil | — | (805) 276 1470 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Pac-man Construction INC | Cesar Torres | — | (661) 440 0134 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Pacheco Pool Tile INC | Alvarado Ramiro Pacheco | — | (661) 792 7982 | Other | Mc Farland · Kern County | — | — |
| Pacific Cal Flooring & Painting Service | Scott Lee Schwecheimer | — | (661) 634 0900 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Pacific Coast Construction | Brian Franco | info@pacificcoastconstruction.com | (661) 431 0796 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Pacific Coast Energy Conservation Services INC | Aden Durrett Watts | — | (661) 393 8988 | HVAC | Bakersfield · Kern County | — | — |
| Pacific Coast Heating & Air Conditioning | Naranjo Hurtado Luis | — | (661) 340 5739 | HVAC | Bakersfield · Kern County | — | — |
| Pacific Construction And Framing LLC | Jim Allan Jr Clawson | — | (661) 587 6500 | Other | Bakersfield · Kern County | — | — |
| Pacific Construction Services INC | Ricky Robert Martinez | — | (661) 829 1002 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Pacific Grading & Excavation | Grant Karl Meenach | — | (661) 615 6489 | Other | Bakersfield · Kern County | — | — |
| Pacific Rays Electric INC | Gabriel Reymundo Santos Saavedra | — | (805) 336 8585 | Electricians | Tehachapi · Kern County | — | — |
| Pacific West Sound Professional Audio & Design INC | Brent Thomas Milton | — | (661) 395 1448 | Electricians | Bakersfield · Kern County | — | — |
| Pacifica Construction | Thomas Edward Hersom | — | (661) 238 5744 | GC, remodel, ADU | Tehachapi · Kern County | — | — |
| Padillas Pro Coatings | Craig Felix Padilla | — | (559) 270 2550 | Windows, patio, painters | Bakersfield · Kern County | — | — |